Deepest bat colony

According to Official Guinness Records,

The world’s deepest bat colony, comprising approximately 1,000 little brown bats (Myotis lucifrugus), spends each winter in a New York zinc mine, USA, at a record depth for any bat species of 1,160 m (3,805 ft), almost six times deeper than this species’ normal roosting depth.

For a complete list of Unknown date records, please visit Unknown date Guinness Records in United States.

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